private static void DrawFunctionDeclaration(
CanvasDrawingSession session,
float offset,
IndentationType indentationType)
{
session.FillRoundedRectangle(IndentationIndicatorsLeftMargin, offset, IndentationIndicatorBlockSize, IndentationIndicatorBlockSize, 9999, 9999, FunctionBackgroundColor);
session.DrawRoundedRectangle(IndentationIndicatorsLeftMargin, offset, IndentationIndicatorBlockSize, IndentationIndicatorBlockSize, 9999, 9999, OutlineColor);
session.DrawText("f", IndentationIndicatorsLeftMargin + 4f, offset, TextColor, TextFormat);
// Vertical guide
if ((indentationType & IndentationType.FullSize) != 0)
{
session.DrawLine(IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorBlockSize, IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorsElementHeight, OutlineColor);
}
else
{
float middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f;
session.DrawLine(IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorBlockSize, IndentationIndicatorsMiddleMargin, middleOffset, OutlineColor);
}
// Horizontal marker
if ((indentationType & IndentationType.IsClosing) != 0)
{
float
horizontalOffset = IndentationIndicatorsMiddleMargin - 0.5f,
middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f + 0.5f;
session.DrawLine(horizontalOffset, middleOffset, IndentationIndicatorsRightMargin, middleOffset, OutlineColor);
}
}
private static void DrawLine(
CanvasDrawingSession session,
float offset,
IndentationType indentationType)
{
// Vertical guide
if ((indentationType & IndentationType.FullSize) != 0)
{
session.DrawLine(IndentationIndicatorsMiddleMargin, offset, IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorsElementHeight, OutlineColor);
}
else
{
float middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f;
session.DrawLine(IndentationIndicatorsMiddleMargin, offset, IndentationIndicatorsMiddleMargin, middleOffset, OutlineColor);
}
// Horizontal marker
if ((indentationType & IndentationType.IsClosing) != 0)
{
float
horizontalOffset = IndentationIndicatorsMiddleMargin - 0.5f,
middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f + 0.5f;
session.DrawLine(horizontalOffset, middleOffset, IndentationIndicatorsRightMargin, middleOffset, OutlineColor);
}
}
private static void DrawIndentationBlock(
CanvasDrawingSession session,
float offset,
int depth,
IndentationType indentationType,
bool isWithinFunction)
{
Debug.Assert(offset >= 0);
Debug.Assert(depth >= 1);
// Indentation block
if (isWithinFunction)
{
session.DrawRoundedRectangle(IndentationIndicatorsLeftMargin, offset, IndentationIndicatorBlockSize, IndentationIndicatorBlockSize, 2, 2, OutlineColor);
}
else
{
session.DrawRectangle(IndentationIndicatorsLeftMargin, offset, IndentationIndicatorBlockSize, IndentationIndicatorBlockSize, OutlineColor);
}
// Depth level counter
string text = depth <= 9 ? depth.ToString() : "•";
session.DrawText(text, IndentationIndicatorsLeftMargin + 3, offset - 1, TextColor, TextFormat);
// Vertical guide
if ((indentationType & IndentationType.FullSize) != 0)
{
session.DrawLine(IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorBlockSize, IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorsElementHeight, OutlineColor);
}
else
{
float middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f;
session.DrawLine(IndentationIndicatorsMiddleMargin, offset + IndentationIndicatorBlockSize, IndentationIndicatorsMiddleMargin, middleOffset, OutlineColor);
}
// Horizontal marker
if ((indentationType & IndentationType.IsClosing) != 0)
{
float
horizontalOffset = IndentationIndicatorsMiddleMargin - 0.5f,
middleOffset = offset + (IndentationIndicatorsElementHeight + IndentationIndicatorBlockSize) / 2f + 0.5f;
session.DrawLine(horizontalOffset, middleOffset, IndentationIndicatorsRightMargin, middleOffset, OutlineColor);
}
}
